Valve



May 27 1924 1,495,774

M. J. BROWN VALVE Filed Aug. 21, 1922 INVENTOK ATTORNEY MORTIMER SAY BROKE/"H, OF NIAGARA 3615511413. NEN YGRK, ASBIGTTOR, BY MEFSNE AS- SIGNMENTS, TO THE PACIFIC R 6.: H GHEIvIIfiAL C GTRPORATIOIY-T. OF LUS ANGELES, CALIFORNIA/1k CORPORATION 03? CALIFORNIA.

VALVE.

Agiplicatian filed August 21., 1922. fisrial Ho. 5533.134.

To all via/1 m if 1 11 Par-Wis;

Be it known. that l. Mns'rmrziz BROWN. 1- c-itiz-im of 1751s llniiwi Flinn-s. am} Fesident of Niagara l 'zil. in the ((Yviiki') a? 5 Niagara and State of New York. have in Vented ceriaiu new :iml useful improved Valves, of Wliiicli the Following 1;. a. speck fication.

My invention is specifically an improvsd pop-0H valve and pertains paririculzu'l i' {'0 equipment for handling volatile liquids.

The particular object of my invention is to PIO"ldQ a pop -oil valmiliat uannnt trap and hold gases when used for handling liquids. Other objects of my inwntimi and its utility will 00 ag'iparsnt from the de talileddescription to follow am the drawings that form part of this s 'iacifiii'ntimi.

Fig. 1 shows the lncatimi of the valve With reference to the Gillie! parts 0'! the.

para-ms, such as the pump. supply lama. and nozzle.

Fig. 2 is a lrmgit-isstlinai section llfi'fiifjl. the valve,

Fig. 3 isca section on the liw Fig.

In my co-panrling applimti m l lo. 501.553,

there is described a'macliine for handling: volatileliquids. particularly liquid. liyclrm cyanic acid. It is represented by Fig. "i.

and consists essentially of a tank 3.. a mess uring cylinder B, it piston (l. I-Lili'l :2. device D for limiting the up-stmlze of the pismn,

The dawn-stmlzs of the. piston limiz by a Contact with film metallic. lmttnm ok the measuring cylinder. lizessiiriii" 1. nis pump delivers the precise: min-mat 0i liquici represented by t-Ew. length i i the giis'ilcm Strokes tlirmiyi: pup-05' vz l'v'e' ill. pips F and nozzle G. Us the (lfniiiSfiiriltg valvs TF3 opens. 0n the zip-sit e it closes promptly with the result that pi F and! nozzle G: are. always full of the liqiiii l @lmf. "being an ployed. The nin'eat of valve E is to pm vent liquid flowing from the tank A down through cylinder B and out through now-ls is using? misa i. llnss seiiinm G" when pismuch as the more than h. ordinary :1 spring from esws nzuily been m simple ball zliiinm-gi liks chamber in lung spring iii {L'Bfilll a0- ce. stantly upon the ball which in turn iirvsssi-fl :igziinsl the seat of the valve. Musli as thus gzzmstrimted 1421*? :mi i'uuziei 033. is entirely satisfactory 1. wise (in? to the act that sit the encl of iflLli Sti'ulie there was a small but nevertl1eless imilesii-ablc spurt of liquid from the nozzle. it was eventually imiml that the cause of this spurt was the [act that there was frappwl in the rhimneydike chamber containing the spring. a pocket of air or other s which u'teii 11s a cushion. being: mmpressarlduring (aacli rl0wn-strol e and expanding? at the; mid thereof. For reasons of (-rmvenience in mnsiurm'ztion and opera. than and for other reasons pertaining to cartniu rimterials filial might. be used in the marliine if; u 2: found, umilesimbls to lib {lie clwclr valve 01' ver.- in place the in n mz'izmiml plans. It themill? 'H'SCEFISZ v iii: 2. \illVP that l all. n? hie-*- clam-able nliaa'ncierbl'\-. the mes 4 ml, had been used, but 'ifi'llllmlt the Hull. 0? iiiapjii'flg gases in the manner incliva't 55.

Tim piston in applicatinn S. N. 501553. filwl Se ne-112 1 01 l9. 3.921.. ior apparatus for measuring: and iliscliargingr liqiiii'l. is pr0- vidscl will: a vali'v ll'miiilfl-nlisil actuated i1 which, IQ. x ,i ii';::es a low cm emigre and on reduction 05 pressure. The pump is char; in: gll'lvlifJ through the hol es- If i the 'ifbf fl l and ihe 'iistsn C 3-,. a 5% fliers a i'cliiliiv mevement of My inventisn spesifically a. valve that cannot imp Emil raisin gases whem-ibein used in a machine such the one describs This valve is shown in vei'ti 'al cross section in Fig. 2 wherein R is wile seat. I is the will. A is the; ve tical shimmy anti K the 'I' ,i the valve are i1 an-ci H and escape at lRZLS mtersri "ills Valve Q it in. v i3 2 small 011%,

inm rl'ic- 'am'aul'ar gz'ssve and Thence i ii rough the ii lines in Fig. 2; or it may pass upward through the chimney J down through the small'tubular opening N to the annular groove and out as before. Some of the liquid takes each path. heuever liquid carrying entrained gases passes into the valve, the gases immediately rise in the chimney J, pass down the small tubular opening N and are again entrained in the escaping liquid and pass out at M Without any appreciable delay in the passage. The passageway from the lower ortion of the chimney J surrounding the all I to the annular groove surrounding the seat H is sulliciently constricted so that some of the liquid is continually forced up the chimney J and down the small passage N, yet large enough to permit some of the liquid to flow through this constricted portion.

Fig. 3 shows a cross section of the chimney, on the line 1--2- of Fig. 2. I have found that with a valve embodying this principle a chimney of any desired height can be used and therefore a spring of any desirable characteristics, and that without fail the chimney frees itself of the gases immediately after they are introduced into the valve. Its action is entirely automatic, requiring no care whatever on the part of the operator and it cannot cease to function unless the valve becomes so foul with dirt that passage G is entirely obstructed.

It is obvious that a disc may be substituted for a ball. Also, since the spring as shown operates on a vertical axis, it can be replaced by a cylindrical metallic slug of sufiicient weight to exert the same pressure as a spring. I do not therefore limit myself to a spring nor to any one of 'the well known methods of exerting pressure on or by the valve. The valve will function well if the chamber that holds the spring is inclined away from the vertical. It may. in fact, be placed at an angle. although when placed on a horizontal axis my invention ceases to function.

From the drawing it will be seen that the closed chamber above the valve seat is threaded onto the body portion containing the inlet and outlet passages, and therefore it will be seen that this closed chamber may be removed to afford access to the valve seat for cleaning.

The combination of a pump containing a positively actuated valve in the piston, which crea es no suction on the liquid. with the pop-ofi' valve described in detail in this application, has been covered by claims in my divisional application S. N. 687,224 for measuring and spraying apparatus for a. volatile fumigant, filed January 19. 1924, while the'clanns in the present application are limited to the pop-oil valve per so.

I claim: 1. The combination with pop-oil valve,

of a seat therefor, a closed chamber above said valve seat, a supply passageway leading to said valve and controlled thereby, an outlet passageway leading from said chamber and provided with a constricted portion, and another passageway from the top portion of id chamber connected to said outlet passageway beyond its constricted portion.

2. The combination with a valve for liquids, of a seat therefor, a closed chamber above the valve seat, a supply passageway leading to the valve and controlled thereby, an outlet passageway leading from the lower portion of said chamber adjacent said seat. a passageway leading from the upper part of said chamber and connected to said outlet passageway, and means to cause a portion of the liquid to pass through said passageway from the upper part of the chamber.

3. In a valve, the combination with substantially horizontal inlet and outlet passageways thereto and from, of a valve and seat, a substantially vertical chamber removably surrounding the valve seat, an out let from the lower part of said chamber, and means for removing any gases from the upper part of said chamber.

4. The combination with a valve for liquids, of a seat therefor, a closed chamber above said seat and larger than said valve to enable liquid to rise in the chamber l ast said valve when open, a supply passageway leading to said valve and controlled thereby, an outlet passageway leading from Said chamber and provided with a constricted portion therein a passageway leading from the upper portion of said chamber and coil nccted to the outlet passageway beyond said constricted portion, said constricted portion being of such a size as to cause some of the liquid to pass through the passageway leading from the top of the chamber and yet enable some of the liquid to pass through the constricted portion of the outlet passageway.

5. The combination with a valve for liquids, of a seat therefor, a closed chamber above the seat. a passageway leading from the top of said chamber to elow the valve seat. and means for causing: at least a portion of the liquid supply to pass through said passageway.

6. The combination with a valve or liquids, of a seat therefor, a closed chamber above said valve seat. and a plurality of small outlet pamageways leading from said chamber. at least one of said passageway leading from the upper portion of said chamber for removing any gases along with the liquid passing tlierelhrough.

7. The combination with a valve, of a seat there-For. a. liquid supply passageway controlled by the valve, an elongate closed chamber above said valve seat, a spring in cooperation with said (lumber and valve, an outlet passageway leading from the lower portion of said chamber, another passageway leading from the upper part of said vlmmber and connected to the outlet passageway, and means for causing a porsageway chamber.

tion of the liquid to pass through the pasfrom the upper part of the MORTIMER J AY BROWN. 

